Manual Up / Down Function does not Operate on Back Door Only [12/2024 - ]: Procedure

1. Operate the map light assembly (back door power window regulator switch) and back door control switch and check that the back door power window operates normally.

   OK

   Operates normally

   Result

   Result	Proceed to
   OK (Operates normally)	A
   NG (Does not operate when the switches on the map light assembly are operated.)	B
   NG (Does not operate when the back door control switch is operated.)	C
   NG (Does not operate when the switches on the map light assembly or back door control switch are operated.)	D

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

Result: 

C 

See step  3

Result: 

D 

See step  4

Result: 

B 

See step  2

Refer to INSPECTION [12/2024 - ]

Result

Result: 

OK 

See step  5

Result: 

NG 

REPLACE MAP LIGHT ASSEMBLY (Back Door Power Window Regulator Switch) 

Refer to REMOVAL [12/2024 - ]

1. Check that the power door lock operates normally.

   HINT: 

   Refer to OPERATION CHECK [12/2024 - ]

   OK

   Operates normally

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2024 - ]

Result: 

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Rear Wiper Retractable Switch	Rear wiper retracting switch signal	OFF or ON	ON: Rear wiper in retracting position OFF: Rear wiper in other position	-
   Rear Wiper Reverse Switch	Rear wiper reverse position switch signal	OFF or ON	ON: Rear wiper in reverse position OFF: Rear wiper in other position	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Rear Wiper Retractable Switch
   Rear Wiper Reverse Switch

   OK

   On the GTS screen, ON or OFF is displayed accordingly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  6

Result: 

NG 

INSPECT WIPER AND WASHER 

Refer to Rear Wiper Motor Circuit [12/2024 - ]

1. Disconnect the X1 map light assembly connector.
2. Disconnect the K3 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   X1-22 (UP) - K3-25 (BUP)	Always	Below 1 Ω
   X1-22 (UP) or K3-25 (BUP) - Body ground	Always	10 kΩ or higher
   X1-21 (DOWN) - K3-19 (BDN)	Always	Below 1 Ω
   X1-21 (DOWN) or K3-19 (BDN) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2024 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Inside Back Door P/W UP Switch	Map light assembly (back door power window up switch)	OFF or ON	OFF: Up switch not being operated ON: Up switch being operated	Main body ECU output
   Inside Back Door P/W DOWN Switch	Map light assembly (back door power window down switch)	OFF or ON	OFF: Up switch not being operated ON: Up switch being operated	Main body ECU output
   Outside Back Door P/W UP Switch	Back door control switch	OFF or ON	OFF: Up switch not being operated ON: Up switch being operated	Main body ECU output
   Outside Back Door P/W DOWN Switch	Back door control switch	OFF or ON	OFF: Up switch not being operated ON: Up switch being operated	Main body ECU output

   Body Electrical > Main Body > Data List 

   Tester Display
   Inside Back Door P/W UP Switch
   Inside Back Door P/W DOWN Switch
   Outside Back Door P/W UP Switch
   Outside Back Door P/W DOWN Switch

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2024 - ]

Result: 

OK 

See step  7

1. Disconnect the K2 and K3 main body ECU (multiplex network body ECU) connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K3-15 (BUP2) - Body ground	Ignition switch ON	11 to 14 V
   K2-3 (BDN2) - Body ground	Ignition switch ON	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  9

Result: 

OK 

See step  8

1. Connect the K2 and K3 main body ECU (multiplex network body ECU) connector.
2. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU))

   -

   -

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K3-15 (BUP2) - Body ground	Ignition switch ON, map light assembly (back door power window regulator switch) UP	Below 1 V
   K2-3 (BDN2) - Body ground	Ignition switch ON, map light assembly (back door power window regulator switch) DOWN	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  10

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2024 - ]

1. Disconnect the b7 power window regulator motor assembly RH (for back door) connector.
2. Disconnect the K2 and K3 main body ECU (multiplex network body ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   b7-10 (UP) - K3-15 (BUP2)	Always	Below 1 Ω
   b7-10 (UP) or K3-15 (BUP2) - Body ground	Always	10 kΩ or higher
   b7-7 (DOWN) - K2-3 (BDN2)	Always	Below 1 Ω
   b7-7 (DOWN) or K2-3 (BDN2) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Back Door) 

Refer to REMOVAL [12/2024 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Check that the power window components of the back door window are correctly installed (components which may cause the door glass to deviate from the normal fully closed position, such as the door glass runs).

   OK

   The power window components of the back door window are correctly installed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL PARTS CORRECTLY 

Result: 

OK 

See step  11

1. Remove the bolt of the door glass and check that the door glass slides smoothly without being caught when it is moved up and down by hand.
   NOTE:

   • The door glass fits with the door glass run without improper contact or deformation.
   • Foreign matter is not caught in the door glass run.
   • The door glass run is not misaligned.
   • The door belt moulding or door inner glass weatherstrip is not caught.
   • The door glass is not tilted and does not catch.

   OK

   The door glass slides smoothly without being caught when it is moved up and down by hand.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL PARTS CORRECTLY (Remove any foreign matter which may cause poor installation, or repair or replace parts that are installed incorrectly.) 

Result: 

OK 

See step  12

1. Remove the back door glass.

   HINT: 

   Refer to DISASSEMBLY [12/2024 - ]

2. Turn the ignition switch to ON.
3. Operate the map light assembly (back door power window regulator switch) and back door control switch and check that the back door power window regulator with motor assembly operates smoothly.

   OK

   Operates smoothly without being caught.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (OVERHEATED POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Back Door) WAS DEFECTIVE) 

Result: 

NG 

See step  13

1. Remove the back door power window regulator with motor assembly.

   HINT: 

   Refer to DISASSEMBLY [12/2024 - ]

2. Remove the power window regulator motor assembly RH (for back door).

   HINT: 

   Refer to REMOVAL [12/2024 - ]

3. Check that the back door power window regulator sub-assembly is not deformed or distorted.

   OK

   No deformation or distortion.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Back Door) 

Refer to REMOVAL [12/2024 - ]

Result: 

NG 

REPLACE BACK DOOR POWER WINDOW REGULATOR SUB-ASSEMBLY 

Refer to DISASSEMBLY [12/2024 - ]